Cab coupling



(No Model.) 3 Sheets-Sheet 1.

ZEH'NECL CAR GUPLING.

No. 499,078. Ptat'ented June 6, 1893.

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3 Sheets--Sheet 2.

@K @MINI 'f Pa'tnted June 6, 1893.

J. ZEHNEGK.

GAR GOUPLING.'

'(No Model.)

/lYVf/VTOF (No Model.) 5 i s sheets-sheet 3. J.ZEHNBGK, UAR COUPLING. Y

BNQ/199,078. Patlltd 111116 1893.

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UNrTED STATES PATENT EEICE.

JOSEPH ZEHNEGK, OF MAGDEBURG, GERMANY.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 499,078, dated June 6,1893.

Application tiled February 2. 1893. Serial No. 460,815. (No model.)

T0 a/ZZ whom t ,may concern:

Be it known that 1, JOSEPH ZEHNECK, of lNIagdeburg-Buckau, Prussia,Germany, have invented new and useful Improvements in AutomaticCouplings for Railway-Oarriages, of which the following is a full,clear, and exact description.

The improvements are especially adapted to the form of car couplingemployed on the German state railways.

The invention consists in the novel construction hereinafter describedand claimed.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar letters of reference indicatocorresponding parts in all the figures.

Figure l is a side elevation showing the hooked drawheads on two coupledcars; the yoke, the coupling link, and the adjusting devices beingsupported from one car and engaging the hooked drawhead of the oppo`site car. Fig. 2 is a detail side elevation showing the position of alink of one car and the devices of an opposing car in position whenabout to be uncoupled. Fig. 3 is a plan View. Fig. 4 is an end view, ofthe attachments on one car, arranged to engage a link carried by anopposing car. Fig. 5 is a plan view of certain hooks for engaging theoperating levers or arms on the shaft carrying the coupling link. Fig. 6is a detail side view showing the link of one car, and the devices of anopposing car, when abo ut to be coupled. Fig. 7 is a side view of thecoupling, when about to couple, the operating levers being omitted. Fig.8 is a side view of the detached link on one car on the point ofengaging the drawhead of an opposing car. Fig. 9 is a plan Viewillustrating a slight modification. Fig. 10 is a front end view of thedevices shown in Fig. 9. Fig. 11 is a side view of the operating levers,for coupling and uncoupling, and showing also a counterbalance shaft onwhich one of such levers is mounted, the levers being on separate shaftsas in Figs. 9 and 10. Fig. 12 is a plan view of the tension or adjustingdevices, for taking up slack, and showing also the detachable crank foroperating the same. Fig. 13 shows in plan and in side view, amodification of the lever catch; and Fig. 14 is a side view of the frontportion of the drawhead.

1n constructing my improved coupling, drawheads A, A', are providedhaving hooked outer ends A2, and inclines h on the front of such hooks.v

Mounted on the front of each car in brackets u, is a rock shaft b,secured to the ends dV of the central connecting shaft d', mounted inthe drawhead A, or A', the drawheads being apertured as at d', Fig. 14,for the purpose. The central shaft d carries the yoke'tl which isadapted to receive and support the coupling link or yoke s, which linkis not continuous as in the ordinary link and pin coupling, butterminates at its inner end in arms, which are enlarged as at s, andtransversely apertured. The connection of the link to the yoke t', is asfollows:-A block k, is swiveled by its trunnions 7c in the side arms ofthe yoke t' to rock vertically, and in a threaded bore formed in saidblock is screwed one end of a screw B, the other end of which has athreaded engagement with a similar block Z, to the trunnions Z of which,the enlarged ends s of the arms of the link s, are pivoted. The outerends n of the side arms of the yokez' terminate in upward extensions n,in which is journaled a worm or worm wheel m, in mesh with a worm wheelor worm m', fixed on screw B, whereby the turning of the worm or wormwheel m, by a removable crank handle p, as in Fig. 12, will shorten orlengthen the distance between the blocks 7c and Z, and consequentlycontrol the reach of the link s. The arm p is preferably jointed as atq, for convenience in carrying it. On the sides of the extensions n,projections a.' are formed, and such projections are engaged by therearwardly projected ends s2 of the link s.

The shaft b for rocking the shaft d and controlling t-he yoke t', isprovided at one end with a crank handle o xed at right angles to theyoke t', whereby when the said crank handle is raised to the positionshown in Fig. l, the adjacent yoke 't' will be horizontal as shown, thelinks s carried thereby being in position for coupling to a hook A2 ofan opposing drawhead. When the crank arm a is in the lowered horizontalposition the yoke t' will be lowered t0 the vertical position as at theleft of Figs. 1, 3, and 7, and in Figs. 2, 4, 6, 9, and 10. On the shaftb, also, in the IOO form shown in Figs. l to 4, a lever or handle j", ismounted to turn loosely, and as best seen in Fig. 8, this level f, isconnected with a frame e, by a connecting bar e', so that the throwingof the lever will raise or lower the frame e. The frame e comprises armse2, and below the said arms, the frame carries arms or cams e3 theposition of the arms e2, c3, being such that the arms e2 lie on top ofor over the links s, of an opposing car, while thel In the form shown inFigs. 9 and l0, the lever jissecured to a separate shaft f2, jour-- Inthis form the shafts f2 carry a separate frame e4 at `each side of naledin brackets u.

the drawhead, the said frames being otherwise the same as the frames c,previously described. A hook ron the car holds the lever f,.raised.

In coupling, when two cars approach, thev link s will strike the inclineh, of an opposing drawhead and rise thereon, and strike andl raise theframe arms e2, and hook over the end of the-drawhead. By throwingthelever f upward, the cams e3 will detach an opposing link s. Aftercoupling, the slack between the cars is taken up by employing the crankhandlef, to turn the worm m.

On the shaft b, is a weighted arm g, Q representing the weight, thetendency of which is to throw the yoke i downward.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination in a car coupling, of a drawheadhaving a hooked outer end, and an incline on said hooked end, a rockshaft, a yoke thereon, a coupling link, a screw supported at one end insaid yoke, alink threaded to the opposite end of said screw, and a wormmechanism for actuating said screw for adjusting the link, substantiallyas described.

2. The combination yin a car coupling, of a drawhead having a hookedouter end,va rock shaft,a yoke on said rock shaft,a link pivotallyconnected with said yoke, means for .throwing said shaft, a framepivoted to rock vertically and having an operatiuglever, and armscarried by said frame and. diverging from each other, and extendingacross the hooked end of the drawhead, at the sides thereof,substantially as described.

YIn wit-ness whereof I have hereunto set my hand in presence of twowitnesses.

JOSEPH ZEHNEOK. Witnesses:

ERNsT KOHLE, W. EGGELING.

